Implemented animated tab and device detection in separate thread

src/libprs500/gui2/Makefile

@@ -1,8 +1,13 @@
+all : main_ui.py images_rc.py
+
 main_ui.py : main.ui
 	pyuic4 main.ui | sed -s s/^.*Margin.*// | sed -e s/^.*boxlayout\.setObjectName.*// > main_ui.py
 
-images_rc.py : images.qrc
+images_rc.py : images.qrc images
 	pyrcc4 images.qrc > images_rc.py
 
 clean :
 	rm main_ui.py images_rc.py
+
+test : all
+	python main.py

src/libprs500/gui2/device.py

@@ -0,0 +1,39 @@
+##    Copyright (C) 2007 Kovid Goyal kovid@kovidgoyal.net
+##    This program is free software; you can redistribute it and/or modify
+##    it under the terms of the GNU General Public License as published by
+##    the Free Software Foundation; either version 2 of the License, or
+##    (at your option) any later version.
+##
+##    This program is distributed in the hope that it will be useful,
+##    but WITHOUT ANY WARRANTY; without even the implied warranty of
+##    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##    GNU General Public License for more details.
+##
+##    You should have received a copy of the GNU General Public License along
+##    with this program; if not, write to the Free Software Foundation, Inc.,
+##    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.Warning
+from PyQt4.QtCore import QThread, SIGNAL
+
+from libprs500.devices.prs500.driver import PRS500
+
+class DeviceDetector(QThread):
+    def __init__(self, sleep_time=2000):
+        '''        
+        @param sleep_time: Time to sleep between device probes in millisecs
+        @type sleep_time: integer
+        '''
+        self.devices    = ([PRS500, False],)
+        self.sleep_time = sleep_time
+        QThread.__init__(self)
+        
+    def run(self):
+        while True:
+            for device in self.devices:
+                connected = device[0].is_connected()
+                if connected and not device[1]:
+                    self.emit(SIGNAL('connected(PyQt_PyObject, PyQt_PyObject)'), device[0], True)
+                    device[1] ^= True
+                elif not connected and device[1]:
+                    self.emit(SIGNAL('connected(PyQt_PyObject, PyQt_PyObject)'), device[0], False)
+                    device[1] ^= True
+            self.msleep(self.sleep_time)

src/libprs500/gui2/images.qrc

@@ -10,7 +10,8 @@
         <file alias="card" >images/memory_stick_unmount.png</file>
         <file>images/minus.png</file>
         <file>images/plus.png</file>
-        <file>images/upload.png</file>
         <file alias="reader" >images/reader.png</file>
+        <file>images/upload.png</file>
+        <file>images/jobs.svg</file>
     </qresource>
 </RCC>

src/libprs500/gui2/library.py

@@ -30,9 +30,8 @@ class LibraryDelegate(QItemDelegate):
     SIZE     = 16
     PEN      = QPen(COLOR, 1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin)
     
-    def __init__(self, parent, rating_column=-1):
+    def __init__(self, parent):
         QItemDelegate.__init__(self, parent)
-        self.rating_column = rating_column
         self.star_path = QPainterPath()
         self.star_path.moveTo(90, 50)
         for i in range(1, 5):
@@ -47,14 +46,10 @@ class LibraryDelegate(QItemDelegate):
         self.factor = self.SIZE/100.        
 
     def sizeHint(self, option, index):
-        if index.column() != self.rating_column:
-            return QItemDelegate.sizeHint(self, option, index)
         num = index.model().data(index, Qt.DisplayRole).toInt()[0]
         return QSize(num*(self.SIZE), self.SIZE+4)
     
     def paint(self, painter, option, index):
-        if index.column() != self.rating_column:
-            return QItemDelegate.paint(self, painter, option, index)
         num = index.model().data(index, Qt.DisplayRole).toInt()[0]
         def draw_star(): 
             painter.save()
@@ -113,7 +108,7 @@ class BooksView(QTableView):
         self.setModel(self.model)
         self.setSelectionBehavior(QAbstractItemView.SelectRows)
         self.setSortingEnabled(True)
-        self.setItemDelegate(LibraryDelegate(self, rating_column=4))
+        self.setItemDelegateForColumn(4, LibraryDelegate(self))        
         QObject.connect(self.model, SIGNAL('sorted()'), self.resizeRowsToContents)
         QObject.connect(self.model, SIGNAL('searched()'), self.resizeRowsToContents)
         self.verticalHeader().setVisible(False)

src/libprs500/gui2/main.py

@@ -16,13 +16,14 @@ import os, tempfile, sys
 
 from PyQt4.QtCore import Qt, SIGNAL, QObject, QCoreApplication, \
                          QSettings, QVariant, QSize, QEventLoop, QString, \
-                         QBuffer, QIODevice, QModelIndex
+                         QBuffer, QIODevice, QModelIndex, QThread
 from PyQt4.QtGui import QPixmap, QErrorMessage, QLineEdit, \
                         QMessageBox, QFileDialog, QIcon, QDialog, QInputDialog
 from PyQt4.Qt import qDebug, qFatal, qWarning, qCritical
 
 from libprs500.gui2 import APP_TITLE, installErrorHandler
 from libprs500.gui2.main_ui import Ui_MainWindow
+from libprs500.gui2.device import DeviceDetector
 
 class Main(QObject, Ui_MainWindow):
     
@@ -33,6 +34,11 @@ class Main(QObject, Ui_MainWindow):
         self.setupUi(window)
         self.read_settings()
         
+        ####################### Tabs setup #####################
+        self.tabs.setup()
+        self.tabs.animate()        
+        
+        
         ####################### Setup books view ########################
         self.library_view.set_database(self.database_path)
         self.library_view.connect_to_search_box(self.search)
@@ -45,11 +51,21 @@ class Main(QObject, Ui_MainWindow):
         self.library_view.resizeRowsToContents()
         self.search.setFocus(Qt.OtherFocusReason)
         
+        ####################### Setup device detection ########################
+        self.detector = DeviceDetector(sleep_time=2000)
+        QObject.connect(self.detector, SIGNAL('connected(PyQt_PyObject, PyQt_PyObject)'), 
+                        self.device_connected, Qt.QueuedConnection)
+        self.detector.start(QThread.InheritPriority)
+        
+        
+        
+    def device_connected(self, cls, connected):
+        print cls, connected
+    
     def read_settings(self):
         settings = QSettings()
         settings.beginGroup("MainWindow")
-        self.window.resize(settings.value("size", QVariant(QSize(1000, 700))).\
+        self.window.resize(settings.value("size", QVariant(QSize(1000, 700))).toSize())
-                            toSize())
         settings.endGroup()
         self.database_path = settings.value("database path", QVariant(os.path\
                                     .expanduser("~/library1.db"))).toString()

src/libprs500/gui2/main.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>728</width>
+    <width>777</width>
     <height>822</height>
    </rect>
   </property>
@@ -17,29 +17,14 @@
    </sizepolicy>
   </property>
   <property name="windowTitle" >
-   <string/>
+   <string>libprs500</string>
   </property>
   <property name="windowIcon" >
-   <iconset/>
+   <iconset resource="images.qrc" >:/library</iconset>
   </property>
   <widget class="QWidget" name="centralwidget" >
-   <layout class="QVBoxLayout" >
+   <layout class="QGridLayout" >
-    <property name="spacing" >
+    <item row="0" column="0" >
-     <number>6</number>
-    </property>
-    <property name="leftMargin" >
-     <number>9</number>
-    </property>
-    <property name="topMargin" >
-     <number>9</number>
-    </property>
-    <property name="rightMargin" >
-     <number>9</number>
-    </property>
-    <property name="bottomMargin" >
-     <number>9</number>
-    </property>
-    <item>
      <layout class="QHBoxLayout" >
       <property name="spacing" >
        <number>6</number>
@@ -117,7 +102,7 @@
       </item>
      </layout>
     </item>
-    <item>
+    <item row="1" column="0" >
      <layout class="QHBoxLayout" >
       <property name="spacing" >
        <number>6</number>
@@ -165,7 +150,7 @@
          <string/>
         </property>
         <property name="frame" >
-         <bool>false</bool>
+         <bool>true</bool>
         </property>
        </widget>
       </item>
@@ -184,31 +169,43 @@
       </item>
      </layout>
     </item>
-    <item>
+    <item row="2" column="0" >
+     <widget class="AnimatedTabWidget" name="tabs" >
+      <property name="tabPosition" >
+       <enum>QTabWidget::West</enum>
+      </property>
+      <property name="currentIndex" >
+       <number>0</number>
+      </property>
+      <property name="usesScrollButtons" >
+       <bool>false</bool>
+      </property>
+      <widget class="QWidget" name="books_tab" >
+       <attribute name="title" >
+        <string>Books</string>
+       </attribute>
+       <attribute name="icon" >
+        <iconset resource="images.qrc" >:/library</iconset>
+       </attribute>
        <layout class="QGridLayout" >
-      <property name="leftMargin" >
+        <item row="0" column="0" >
+         <widget class="QStackedWidget" name="stacks" >
+          <property name="sizePolicy" >
+           <sizepolicy vsizetype="Preferred" hsizetype="Expanding" >
+            <horstretch>100</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="currentIndex" >
            <number>0</number>
           </property>
-      <property name="topMargin" >
+          <widget class="QWidget" name="library" >
-       <number>0</number>
+           <layout class="QGridLayout" >
-      </property>
+            <item row="0" column="0" >
-      <property name="rightMargin" >
-       <number>0</number>
-      </property>
-      <property name="bottomMargin" >
-       <number>0</number>
-      </property>
-      <property name="horizontalSpacing" >
-       <number>6</number>
-      </property>
-      <property name="verticalSpacing" >
-       <number>6</number>
-      </property>
-      <item row="1" column="0" >
              <widget class="BooksView" name="library_view" >
               <property name="sizePolicy" >
-         <sizepolicy vsizetype="Preferred" hsizetype="Preferred" >
+               <sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
-          <horstretch>0</horstretch>
+                <horstretch>100</horstretch>
                 <verstretch>10</verstretch>
                </sizepolicy>
               </property>
@@ -236,8 +233,58 @@
              </widget>
             </item>
            </layout>
+          </widget>
+          <widget class="QWidget" name="main_memory" >
+           <layout class="QGridLayout" >
+            <item row="0" column="0" >
+             <widget class="BooksView" name="main_memory_view" >
+              <property name="sizePolicy" >
+               <sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
+                <horstretch>100</horstretch>
+                <verstretch>10</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="acceptDrops" >
+               <bool>true</bool>
+              </property>
+              <property name="dragEnabled" >
+               <bool>true</bool>
+              </property>
+              <property name="dragDropOverwriteMode" >
+               <bool>false</bool>
+              </property>
+              <property name="dragDropMode" >
+               <enum>QAbstractItemView::DragDrop</enum>
+              </property>
+              <property name="alternatingRowColors" >
+               <bool>true</bool>
+              </property>
+              <property name="selectionBehavior" >
+               <enum>QAbstractItemView::SelectRows</enum>
+              </property>
+              <property name="showGrid" >
+               <bool>false</bool>
+              </property>
+             </widget>
             </item>
-    <item>
+           </layout>
+          </widget>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="jobs_tab" >
+       <attribute name="title" >
+        <string>Jobs</string>
+       </attribute>
+       <attribute name="toolTip" >
+        <string>Show jobs being currently processed</string>
+       </attribute>
+       <layout class="QGridLayout" />
+      </widget>
+     </widget>
+    </item>
+    <item row="3" column="0" >
      <layout class="QHBoxLayout" >
       <property name="spacing" >
        <number>6</number>
@@ -380,6 +427,12 @@
    <extends>QLineEdit</extends>
    <header>library.h</header>
   </customwidget>
+  <customwidget>
+   <class>AnimatedTabWidget</class>
+   <extends>QTabWidget</extends>
+   <header>progress.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="images.qrc" />

src/libprs500/gui2/main_ui.py

@@ -2,8 +2,8 @@
 
 # Form implementation generated from reading ui file 'main.ui'
 #
-# Created: Sun May 27 10:53:01 2007
+# Created: Wed Jun  6 19:26:17 2007
-#      by: PyQt4 UI code generator 4-snapshot-20070525
+#      by: PyQt4 UI code generator 4-snapshot-20070530
 #
 # WARNING! All changes made in this file will be lost!
 
@@ -12,24 +12,20 @@ from PyQt4 import QtCore, QtGui
 class Ui_MainWindow(object):
     def setupUi(self, MainWindow):
         MainWindow.setObjectName("MainWindow")
-        MainWindow.resize(QtCore.QSize(QtCore.QRect(0,0,728,822).size()).expandedTo(MainWindow.minimumSizeHint()))
+        MainWindow.resize(QtCore.QSize(QtCore.QRect(0,0,777,822).size()).expandedTo(MainWindow.minimumSizeHint()))
 
         sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred,QtGui.QSizePolicy.Preferred)
         sizePolicy.setHorizontalStretch(0)
         sizePolicy.setVerticalStretch(0)
         sizePolicy.setHeightForWidth(MainWindow.sizePolicy().hasHeightForWidth())
         MainWindow.setSizePolicy(sizePolicy)
+        MainWindow.setWindowIcon(QtGui.QIcon(":/library"))
 
         self.centralwidget = QtGui.QWidget(MainWindow)
         self.centralwidget.setObjectName("centralwidget")
 
-        self.vboxlayout = QtGui.QVBoxLayout(self.centralwidget)
+        self.gridlayout = QtGui.QGridLayout(self.centralwidget)
-        self.vboxlayout.setSpacing(6)
+        self.gridlayout.setObjectName("gridlayout")
-
-
-
-
-
 
         self.hboxlayout = QtGui.QHBoxLayout()
         self.hboxlayout.setSpacing(6)
@@ -68,7 +64,7 @@ class Ui_MainWindow(object):
         self.df.setOpenExternalLinks(True)
         self.df.setObjectName("df")
         self.hboxlayout.addWidget(self.df)
-        self.vboxlayout.addLayout(self.hboxlayout)
+        self.gridlayout.addLayout(self.hboxlayout,0,0,1,1)
 
         self.hboxlayout1 = QtGui.QHBoxLayout()
         self.hboxlayout1.setSpacing(6)
@@ -94,21 +90,38 @@ class Ui_MainWindow(object):
         self.clear_button.setIcon(QtGui.QIcon(":/images/clear.png"))
         self.clear_button.setObjectName("clear_button")
         self.hboxlayout1.addWidget(self.clear_button)
-        self.vboxlayout.addLayout(self.hboxlayout1)
+        self.gridlayout.addLayout(self.hboxlayout1,1,0,1,1)
 
-        self.gridlayout = QtGui.QGridLayout()
+        self.tabs = AnimatedTabWidget(self.centralwidget)
+        self.tabs.setTabPosition(QtGui.QTabWidget.West)
+        self.tabs.setUsesScrollButtons(False)
+        self.tabs.setObjectName("tabs")
 
+        self.books_tab = QtGui.QWidget()
+        self.books_tab.setObjectName("books_tab")
 
+        self.gridlayout1 = QtGui.QGridLayout(self.books_tab)
+        self.gridlayout1.setObjectName("gridlayout1")
 
+        self.stacks = QtGui.QStackedWidget(self.books_tab)
 
-        self.gridlayout.setHorizontalSpacing(6)
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Preferred)
-        self.gridlayout.setVerticalSpacing(6)
+        sizePolicy.setHorizontalStretch(100)
-        self.gridlayout.setObjectName("gridlayout")
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.stacks.sizePolicy().hasHeightForWidth())
+        self.stacks.setSizePolicy(sizePolicy)
+        self.stacks.setObjectName("stacks")
 
-        self.library_view = BooksView(self.centralwidget)
+        self.library = QtGui.QWidget()
+        self.library.setObjectName("library")
 
-        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred,QtGui.QSizePolicy.Preferred)
+        self.gridlayout2 = QtGui.QGridLayout(self.library)
-        sizePolicy.setHorizontalStretch(0)
+        self.gridlayout2.setObjectName("gridlayout2")
+
+        self.library_view = BooksView(self.library)
+
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Expanding)
+        sizePolicy.setHorizontalStretch(100)
         sizePolicy.setVerticalStretch(10)
         sizePolicy.setHeightForWidth(self.library_view.sizePolicy().hasHeightForWidth())
         self.library_view.setSizePolicy(sizePolicy)
@@ -120,8 +133,42 @@ class Ui_MainWindow(object):
         self.library_view.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
         self.library_view.setShowGrid(False)
         self.library_view.setObjectName("library_view")
-        self.gridlayout.addWidget(self.library_view,1,0,1,1)
+        self.gridlayout2.addWidget(self.library_view,0,0,1,1)
-        self.vboxlayout.addLayout(self.gridlayout)
+        self.stacks.addWidget(self.library)
+
+        self.main_memory = QtGui.QWidget()
+        self.main_memory.setObjectName("main_memory")
+
+        self.gridlayout3 = QtGui.QGridLayout(self.main_memory)
+        self.gridlayout3.setObjectName("gridlayout3")
+
+        self.main_memory_view = BooksView(self.main_memory)
+
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Expanding)
+        sizePolicy.setHorizontalStretch(100)
+        sizePolicy.setVerticalStretch(10)
+        sizePolicy.setHeightForWidth(self.main_memory_view.sizePolicy().hasHeightForWidth())
+        self.main_memory_view.setSizePolicy(sizePolicy)
+        self.main_memory_view.setAcceptDrops(True)
+        self.main_memory_view.setDragEnabled(True)
+        self.main_memory_view.setDragDropOverwriteMode(False)
+        self.main_memory_view.setDragDropMode(QtGui.QAbstractItemView.DragDrop)
+        self.main_memory_view.setAlternatingRowColors(True)
+        self.main_memory_view.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
+        self.main_memory_view.setShowGrid(False)
+        self.main_memory_view.setObjectName("main_memory_view")
+        self.gridlayout3.addWidget(self.main_memory_view,0,0,1,1)
+        self.stacks.addWidget(self.main_memory)
+        self.gridlayout1.addWidget(self.stacks,0,0,1,1)
+        self.tabs.addTab(self.books_tab,QtGui.QIcon(":/library"),"")
+
+        self.jobs_tab = QtGui.QWidget()
+        self.jobs_tab.setObjectName("jobs_tab")
+
+        self.gridlayout4 = QtGui.QGridLayout(self.jobs_tab)
+        self.gridlayout4.setObjectName("gridlayout4")
+        self.tabs.addTab(self.jobs_tab,"")
+        self.gridlayout.addWidget(self.tabs,2,0,1,1)
 
         self.hboxlayout2 = QtGui.QHBoxLayout()
         self.hboxlayout2.setSpacing(6)
@@ -142,7 +189,7 @@ class Ui_MainWindow(object):
         self.book_info.setTextFormat(QtCore.Qt.RichText)
         self.book_info.setObjectName("book_info")
         self.hboxlayout2.addWidget(self.book_info)
-        self.vboxlayout.addLayout(self.hboxlayout2)
+        self.gridlayout.addLayout(self.hboxlayout2,3,0,1,1)
         MainWindow.setCentralWidget(self.centralwidget)
 
         self.tool_bar = QtGui.QToolBar(MainWindow)
@@ -173,16 +220,22 @@ class Ui_MainWindow(object):
         self.label.setBuddy(self.search)
 
         self.retranslateUi(MainWindow)
+        self.tabs.setCurrentIndex(0)
+        self.stacks.setCurrentIndex(0)
         QtCore.QObject.connect(self.clear_button,QtCore.SIGNAL("clicked()"),self.search.clear)
         QtCore.QMetaObject.connectSlotsByName(MainWindow)
 
     def retranslateUi(self, MainWindow):
+        MainWindow.setWindowTitle(QtGui.QApplication.translate("MainWindow", "libprs500", None, QtGui.QApplication.UnicodeUTF8))
         self.df.setText(QtGui.QApplication.translate("MainWindow", "For help visit <a href=\"https://libprs500.kovidgoyal.net/wiki/GuiUsage\">http://libprs500.kovidgoyal.net</a><br><br><b>libprs500</b>: %1 by <b>Kovid Goyal</b> &copy; 2006<br>%2 %3 %4", None, QtGui.QApplication.UnicodeUTF8))
         self.label.setText(QtGui.QApplication.translate("MainWindow", "&Search:", None, QtGui.QApplication.UnicodeUTF8))
         self.search.setToolTip(QtGui.QApplication.translate("MainWindow", "Search the list of books by title or author<br><br>Words separated by spaces are ANDed", None, QtGui.QApplication.UnicodeUTF8))
-        self.search.setWhatsThis(QtGui.QApplication.translate("MainWindow", "Search the list of books by title or author<br><br>Words separated by spaces are ANDed", None, QtGui.QApplication.UnicodeUTF8))
+        self.search.setWhatsThis(QtGui.QApplication.translate("MainWindow", "Search the list of books by title, author, publisher, tags and comments<br><br>Words separated by spaces are ANDed", None, QtGui.QApplication.UnicodeUTF8))
         self.clear_button.setToolTip(QtGui.QApplication.translate("MainWindow", "Reset Quick Search", None, QtGui.QApplication.UnicodeUTF8))
         self.clear_button.setText(QtGui.QApplication.translate("MainWindow", "...", None, QtGui.QApplication.UnicodeUTF8))
+        self.tabs.setTabText(self.tabs.indexOf(self.books_tab), QtGui.QApplication.translate("MainWindow", "Books", None, QtGui.QApplication.UnicodeUTF8))
+        self.tabs.setTabText(self.tabs.indexOf(self.jobs_tab), QtGui.QApplication.translate("MainWindow", "Jobs", None, QtGui.QApplication.UnicodeUTF8))
+        self.tabs.setTabToolTip(self.tabs.indexOf(self.jobs_tab),QtGui.QApplication.translate("MainWindow", "Show jobs being currently processed", None, QtGui.QApplication.UnicodeUTF8))
         self.book_info.setText(QtGui.QApplication.translate("MainWindow", "<table><tr><td><b>Title: </b>%1</td><td><b>&nbsp;Size:</b> %2</td></tr><tr><td><b>Author: </b>%3</td><td><b>&nbsp;Type: </b>%4</td></tr></table>", None, QtGui.QApplication.UnicodeUTF8))
         self.action_add.setText(QtGui.QApplication.translate("MainWindow", "Add books to Library", None, QtGui.QApplication.UnicodeUTF8))
         self.action_add.setShortcut(QtGui.QApplication.translate("MainWindow", "A", None, QtGui.QApplication.UnicodeUTF8))
@@ -192,5 +245,6 @@ class Ui_MainWindow(object):
         self.action_edit.setShortcut(QtGui.QApplication.translate("MainWindow", "E", None, QtGui.QApplication.UnicodeUTF8))
 
 from widgets import DeviceView, CoverDisplay
+from progress import AnimatedTabWidget
 from library import BooksView, SearchBox
 import images_rc

src/libprs500/gui2/progress.py

@@ -0,0 +1,87 @@
+##    Copyright (C) 2007 Kovid Goyal kovid@kovidgoyal.net
+##    This program is free software; you can redistribute it and/or modify
+##    it under the terms of the GNU General Public License as published by
+##    the Free Software Foundation; either version 2 of the License, or
+##    (at your option) any later version.
+##
+##    This program is distributed in the hope that it will be useful,
+##    but WITHOUT ANY WARRANTY; without even the implied warranty of
+##    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##    GNU General Public License for more details.
+##
+##    You should have received a copy of the GNU General Public License along
+##    with this program; if not, write to the Free Software Foundation, Inc.,
+##    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from PyQt4.QtGui import QIconEngine, QTabWidget, QPixmap, QIcon, QPainter, QColor
+from PyQt4.QtCore import QTimeLine, QObject, SIGNAL
+from PyQt4.QtSvg import QSvgRenderer
+
+class RotatingIconEngine(QIconEngine):
+    
+    @staticmethod
+    def create_pixmaps(path, size=16, delta=10):
+        r = QSvgRenderer(path)
+        if not r.isValid():
+            raise Exception(path + ' not valid svg')
+        pixmaps = []
+        for angle in range(0, 360, 10):
+            pm = QPixmap(size, size)
+            pm.fill(QColor(0,0,0,0))
+            p = QPainter(pm)
+            p.translate(size/2., size/2.)
+            p.rotate(angle)
+            p.translate(-size/2., -size/2.)
+            r.render(p)
+            p.end()
+            pixmaps.append(pm)
+        return pixmaps
+    
+    def __init__(self, path, size=16):
+        self.pixmaps = self.__class__.create_pixmaps(path, size)
+        self.current = 0
+        QIconEngine.__init__(self)
+        
+    def next(self):
+        self.current += 1
+        self.current %= len(self.pixmaps)
+        
+    def reset(self):
+        self.current = 0
+    
+    def pixmap(self, size, mode, state):
+        return self.pixmaps[self.current]
+    
+    
+class AnimatedTabWidget(QTabWidget):
+    
+    def __init__(self, parent):
+        self.animated_tab = 1
+        self.ri = RotatingIconEngine(':/images/jobs.svg')        
+        QTabWidget.__init__(self, parent)
+        self.timeline = QTimeLine(4000, self)
+        self.timeline.setLoopCount(0)
+        self.timeline.setCurveShape(QTimeLine.LinearCurve)
+        self.timeline.setFrameRange(0, len(self.ri.pixmaps))
+        QObject.connect(self.timeline, SIGNAL('frameChanged(int)'), self.next)
+    
+    def setup(self):
+        self.setTabIcon(self.animated_tab, QIcon(self.ri))
+        
+    def animate(self):
+        self.timeline.start()
+        
+    def update_animated_tab(self):
+        tb = self.tabBar()
+        rect = tb.tabRect(self.animated_tab)
+        tb.update(rect)
+    
+    def stop(self):
+        self.timeline.stop()
+        self.ri.reset()
+        self.update_animated_tab()
+            
+    def next(self, frame):
+        self.ri.next()
+        self.update_animated_tab()
+